Rule out the usual hiding places first. If the piece really is gone, check the set piece by piece
and leave with the element ID LEGO asks for, or a link to buy the part.
612 pieces in 174 part and color combinations, plus 5 minifigures.
The official piece count includes the 24 parts inside the set's minifigures, which this inventory lists separately. Spare parts are counted in neither figure.
Before you call it missing
Builders who report a missing piece often find it in one of these places. Tick each one off as you look.
Look-alike colors in this set
These parts appear in this set in two colors that are easy to confuse. If you are one short in one color,
check whether it went in where the other color belongs. Each color has its own element ID in the parts list
at the back of the instructions.
Plate 2 x 10Black ×1Dark Bluish Gray ×2Black is darker than Dark Bluish Gray.
Tile Special 1 x 2 Grille with Bottom GrooveReddish BrownPart 2412bElement 4224243×1
Tile Special 1 x 2 with HandleReddish BrownPart 2432Element 4211219×1
Dark Red
22 pieces
Plate 1 x 2Dark RedPart 3023Element 4539097 or 4162582×22
Red
16 pieces
Brick Special 1 x 1 with Stud on 1 SideRedPart 87087Element 4558886×2
Brick Special 1 x 2 with Studs on 2 SidesRedPart 52107Element 4569056×2
Plate Special 1 x 2 with Door RailRedPart 32028Element 4612575 or 4239063×2
Technic Axle 4RedPart 3705Element 6129995 or 4265797×4
Technic Beam 1 x 5 Thin with Axle Holes on EndsRedPart 11478Element 6327047 or 6214344×2
Technic Brick 1 x 2 [2 Pin Holes]RedPart 32000Element 4179355 or 4101764×4
Blue
14 pieces
Brick 1 x 2BluePart 3004Element 4613959 or 300423×2
Brick Special 2 x 2 with 2 Pins and Axle HoleBluePart 30000Element 3000023×2
Technic Brick 1 x 1 with Pin HoleBluePart 6541Element 4119014×6
Technic Pin Long with Friction Ridges Lengthwise, 2 Center SlotsBluePart 6558Element 4514553×4
Trans-Red
12 pieces
Plate Round 1 x 1 with Solid StudTrans-RedPart 6141Element 6514051 or 62084502 spares in the box×12
Flat Silver
8 pieces
Arm Mechanical with Clip [Thick Support]Flat SilverPart 98313Element 6262193 or 6008483×8
Trans-Yellow
8 pieces
Brick Sloped 30° 1 x 1 x 2/3 (Cheese Slope)Trans-YellowPart 54200Element 6245272 or 4260942×2
Plate 1 x 2Trans-YellowPart 3023Element 6514002 or 6240211×6
Trans-Orange
7 pieces
Plate 1 x 1Trans-OrangePart 3024Element 6513961 or 62520401 spare in the box×7
Trans-Light Blue
5 pieces
Bar 4L (Lightsaber Blade / Wand)Trans-Light BluePart 30374Element 6507882 or 6170187×1
Tile 1 x 4 with GrooveTrans-Light BluePart 2431Element 6510178 or 6252049×4
Green
4 pieces
Plate 2 x 2GreenPart 3022Element 302228×4
Yellow
4 pieces
Technic Bush 1/2 Smooth with Axle Hole Semi-ReducedYellowPart 32123bElement 6271167 or 32123241 spare in the box×4
Orange
2 pieces
Brick and Axle Separator v2.0OrangePart 96874Element 6240515 or 4654448×1
Tile 2 x 2 with GrooveOrangePart 3068bElement 4542142 or 4125268×1
Dark Azure
1 piece
Plate 2 x 8Dark AzurePart 3034Element 6216890×1
Dark Pink
1 piece
Brick 2 x 2Dark PinkPart 3003Element 4517992 or 4497170×1
Dark Tan
1 piece
Plate Special 1 x 2 with 1 Stud with Groove and Inside Stud Holder (Jumper)Dark TanPart 15573Element 6092591×1
Metallic Silver
1 piece
Weapon Lightsaber Hilt with Bottom RingMetallic SilverPart 64567Element 6546103 or 60513891 spare in the box×1
Trans-Brown
1 piece
Panel 1 x 6 x 5Trans-BrownPart 59349Element 6245429×1
[No Color/Any Color]
1 piece
Sticker Sheet for Set 75221-1[No Color/Any Color]Part 49796Element 6255978×1
Minifigures
5 figures
Imperial Shuttle Pilot with Light Nougat Skin - KrennicMinifigure, checked as a whole figure×1
Obi-Wan Kenobi, Old, Long Dark Brown RobeMinifigure, checked as a whole figure×1
Sandtrooper, Black Pauldron, Neck Bracket with Double Stud, Open MouthMinifigure, checked as a whole figure×1
Sandtrooper Squad Leader / Captain, Orange Pauldron, Neck BracketMinifigure, checked as a whole figure×1
Astromech Droid, R2-D2, Flat Silver Dome, Dark Blue Print with Lavender DotsMinifigure, checked as a whole figure×1
Tick each piece as you find it, or mark it missing.
When a piece really is missing
Ask LEGO
LEGO takes requests for pieces missing from a new set through its customer service site. The form asks for
the set number and each piece's element ID, the number printed beside the piece in the parts list at the back
of the instructions. This checker lists both.
Mark a piece missing and your list links it to an eBay search for that part, which also covers pieces from
older or second-hand sets.
Keep a record
Copy or download your missing list (the CSV opens in any spreadsheet), or print the whole checklist and tick
pieces off on paper. Your marks stay in this browser, so you can check a big set over several sittings.